Thread: 383, 523HP/483TQ, EA 3.0? Dr Bowtie?

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SO, heres another combo, DD says 523/483 .You be the judge:
(DR. Bowtie, your comments are requested!:-)

383
afr 210 heads, race ready (not much more expensive than 195s)

http://www.airflowresearch.com/pages/210sbc_rh.htm

Comp Cam xs290s 252/260 .540/.558 @.050 (290/298 .540/.558 seat to seat) 110 lsa, 104 centerline, solid flat tappet
SEAT-SEAT=ivo 39 ivc-71 evo-83 evc-35

10.5:1
750 cfm
single plane intake
small tube headers,open exhaust

COMP said this cam would be the max they'd go on a semi-street vehicle. it will only give 7-8" vacuum@ 1000 rpm,idle around 950, so manual brakes might be an idea

What do you guys think of this combo as a 50/50 street strip?

Anyone have EA 3.0? I'd really appreciate it.

Anyone have a better solid cam idea for it?

Anyone run something similar?

mpg guesses? :-)

ok....I'd stick with the 195's and maybe go a little softer onn the cam as far as street is concerned...But it's all about what you want....

When you used desktop Dyno are you entering in all the "correct" info? Actually down loading the flowbench numbers for the specific head in question and importing them into DD?

Gas mileage...are you kidding... if you want 500hp...it will be a gasoholic... with your foot in it!...it all depends in your driving habits...the 86 I described in the other thread knocked down 22-23 mpg with very light throttle negotiation any more than that was closer to 15mpg....
as far as software I use Motion soft...it's ok

YEAH, i downloaded all the right info for the flow info etc.

i think ur right, its a general consensus I should stick with the good 'ole 195's.
Im assuming I'll have more low end grunt with the smaller runners.


i am thinking of the xs282, a LITTLE softer on the cam

when I looked at ur info on that 86, I was astonished. I just can't fathom that cam making those #'s.

OG COURSE, the desktop dyon type things can't be relied on heavily, BUT the properties of cam/head combos should be right, maybe just not the values. SO, I am assuming that the beefier cam will help with whatever the hell I'm missing, cuz those #'s out of a 355, or whatever it was (cant look right this seC) are SUPER.

Finally, whats ur take on LSA for a semi street/strip (I know how I am, I'll want to take it to the strip more and more as the ET's drop). Some people say they're at 106 on a street car, others say no lower than 110.

thanks

Well like I have stated earlier...the trick is to make the most power with the least....nomatter what you believe there is "Always" more left in it....

As far as the lobe seperation angle...well you can open a good can of worms here....most people do not know the difference between LSA and Duration as far as there performance and design characteristics..... In an engine... let put this in basic terms....heat=power...If you want to make power you have to build heat! period....so now....duration is when you build the heat(what rpm range)....LSA is how much heat you build....114=lots of heat......102= well not so much....

Trick is to get the right combo of LSA and duration and compression and still remain within the "Safe" limits of the engine.....

Most stock sb. cam are ground on a 114lsa....this is okay for stock compression but, as it climbs upwards of 9.5:1 things can start getting a little too warm ( melt stuff) ...a cam with a 114lsa WILL make more power than a 108lsa grind but add in compression and the 114 will melt stuff a lot faster.....try that on DD2K....put in the cam specs with all aspecs the same as just bump the lsa 2 degrees and see what you get.....

Intake centerline also plays and important tuning role of the cam....It is very hard for the end user to select a cam because most do not understand the full functionality and purpose of a cam.....

I have been on pit crews and have seen first hand while I was being Trained by my Mentor's all about aspect of cams...

I have seen "Heavy hitters" switch cams between round to dial in a car... all aspecs of the cam were the same....lift, duration....just the lsa was +/- 2 degrees....this was to account for track conditions and weather.......when that much money is on the line you do what it takes....T